The WaterMaker Five removes up to 95% of all dissolved salts with a four-stage prefilter, membrane and postfilter all in a single cartridge. The fifth stage, an in-line carbon filter, is placed between the tank and faucet. The unit delivers a 30% faster water flow from the faucet, a faster tank refill and a smaller and lighter build than a typical reverse osmosis system. Annual maintenance is quick and easy and does not require any tools. The complete system is approximately the same height and width as a standard 2-gal tank and is less than 14 in. in depth.